Air-bag puller



paril Z, 1925.

fi. TAYLW E IM.,

MR IMG FULLER Fim@ Jam.

ATT NEY.

April 2s, 1925.

3.5353342 E. c. .TAYLQW m' m..

AIR BAG FULLER 5 SlVmertsa-Sheat' 2 Filed Jan. 15 1.9%

CL TAYLW Mm .ma BAG FULLER 'Filed Jam` 1L` 19% Ei Sheecs-Sheet VEY.

AIR BAG FULLER Filed Jan. 15, 19:24' 5 sheetsfsheet 4 m INVENTOR..

BY M l www `Apfal 28. 192s.

' E. C.'TAY LOR E`T AF..

.un BAG FULLER Filed Jan. '15, 1924 5 Sheetw-Sheet" 5 INVNTOR. ,Vf/"

lower 'the slide in synehronism. with the rest et the mechanism is accomplished hy a crank device, consideration of which may he hest deferred until later.

Pivoted by studs rotatahl,7 secured on lugs 3l projecting from pedestal 22 are hooks 32, shown as 'four in numher. The upper ends ot' these hooks are bent at 33 to overhang` the tire heads. and have wedge ends 34 to enter between the' liag and the tire heads. The lower ends are bent to form lugs 35 over which extend aliutinents 36 carrieti hy the slide, 24. lVhen the slide de scende the pressure of the abutmcnts will cause 'the hooks to he swung outwardl3,T against the pressure of springs 37, and thereby permit the insertion or removal of a tire.

These hooks, being pivoted to pedestal .22, do not more with the slide and as the latter is derated they will hold the heads S8 of the tire 3S), swinging freely transversellt7 of the tire to contorni to the shitting position ot 'the heads as the central part ot the tire is forced upwardly (Fig. l). The upward movement of the slide, coupled with the restmining,r action ot the hooks. causes the hottoin part ot' the tire to he huleed inwardly, forcing` the has l() to a position in which it is made accessible 'from the side of the tire. ln this position it is ready for the action et' the spade.

Before considering the spade and ils action, however, the mechanism for holding,r the tire at. its top will lie descrihed. ln the simplest ease. in which only one size ot' tire is to he handled on the. machine. this may he a simple stationary hook, or a hook with a small vertical movement, with its end shaped rather similarly to the hooks 32. rThe strain on the upper part oi lihe tire is nearly straight downwards, and no other support for it will he ncedee. ln the pres eutease the machine is designed for handling successively7 and without adjustment tires of different sizes, so that the ,mechn anism is some-what more highly organized.

The hook Lll which supports the upper part ot thc tire is in this case vlformed as a part of a slide l2 rrnningy in euideways lf3 on the end. of a rocking lever @tl pivoted at 45 to the frame 2l. The rearward extension or" the lever carries a cam roll 46 enacting with a surface cam i7 et a contour to he described. rllhe hook has an upwardlyY turned lip i8 adapted to enter between the hat;` and the tire head, and also a slantingrI portion 49 adapted to conlact'with the corner ot the head and insure registration of the point of the hook with the space between the tire and the bag. Attached to the forward end of -the lever li is a bracket 5() with its unper held end lient to receive a threaded rod 5l,

a/.ljustahly in position hy a wing nut 52, A, A

spring' :il connects the rod with the hooi: slide lz so as to urge the latter with an ad- Lesesaal instable tension towards the top et its slideway. One side ol the hooh' slide is formed with downwardliT pointingr ratchet teeth 54C (Figs. 9 and 11).` Coacting with these teeth, and sliding 'for this purpose in a hole in the side of the slideway 43, is a. pawl A55. spring 56. located in e recess in the slidee way wall, presses against a lug''? on the pawl to keep the latter out of Contact `with the ratchet except when forced in.- The preferred mounting for this springr is; a screw 59, passing through a hele in the lug and through the spring to keep the parts in alignment. 4

As the lever Lellis tilted from the position. of Fig. 6 te that of 8 (compare also Figs. 4 and l), the slide 452 will more with it until the hook strikes the tire head. and will thereafter, until the pawlr is 'forced into engagement with the ratchet., slide in the ways 43, renrainiirgT stationary while the lever ascends; This preliminary movement of the lever. ending with the parts in the position of Fie. 8, is caused h v a portion 60 oi the cam t7 having a uniform rise of relatively steep ascent. In the position of 8 and 9 two things happenthcv cam roll ridesl on to a portion Gl oi' the cam of more zgradual ascent, and the end oi the pawl contacts with a stationary abutment (i2 secured to the framework. shown hroken away in Figs. 8 aud Jill) op: crates (compare Figs. 9 and ll) to torce the pawl into contact with th ratchet., and thereafter the lever and the hook more as unit. The slight rise ot' the hook during this latter movement acts to for the lip 1S hctwecn the hatC and tire head. and, 'to gire to the tire a slight stretch which will hold it lirmly during subsequent opcratioilis. The cam roll then rides upon :i dwell 63 or" the cam, preserving the tensioncd condition o' the tire until such time as the han; has been completely removed.

'li'his devite operates to sivc tension to the heads of tires as il. ccssivcly placed iu the machine, the)v are of uniform size or not. ingr ot the head is only possible a.. pawl has contacted with the ahutn-.cn This occurs at the position of Fig. 5l i@ cases, the cani roll 'being at this time ji entering` upon the calmv portion et gradual risc. The difference between the hook Ell sition atI this instant tor dille-rent tires is indicated hy the t'ull and dotted lines in Fien S, the full lines representing the pcf.

sition with a smaller tire than the dotted beine" determined by thc portion ofthe cam.

The mechanism for pulling the bag out of the tire .so held may new he considered. As it is desirahh` to keep down as much as posv:amd @wing v mms E bottm.

as the gpad-is wei ingame@ @bei tha img will im myriad mit m? mdvaare mi? tim @am by' sawing" M2. -mnmtng 'the 120 im @lamb mechanism am@ afs Spaan 110 pwoted sm intentuse, 'as m hwk-MJL The-1.

enfl of the eluieh linger ori` of the groove. in the pin. The pressure o` the spring forces the pin into the path of thai one oi' i'he studs 105 which may he nex` o corne hy. Vlf the 'treadle is new released he enfl; of ihe eluteh linger is swung` hv the Swing 11:2 ino the polli of the pin. When the shaft has completed is re\olutio1n Causing elle nia`v Chine to perrorin one complete eyele of op erations, the erlge of the groove in the pin will ride up the tapered Surface olf the elureli with the driving Sinds and stopping the machine.

The shaft Sl; on whieh the elueh ineehanisni is situated also furnishes he power for the tire holding and epeninA devices. The Shaft l'l carrying cani i7 is lined wih a sprocket 1li" connected by a Chain NS wirbh a sprocket llf) lined to the shal'li 8l. At the other enel olf the erank Shaft is a seeond crank 120 carrying at ils end an anti-frio` tion roll 121. T he rear emi of the roel-ing lever 28 operating the tire openin` device ie finished at 122 and 12S llo provi/le lai; bean ingV surfaces, and has a c vhnfglrieal hearing surface 124 ol' a radius equal to that ol he crank plus lthat of the. Cain roll, so hat while the Crank is moving over that. inueh of is travel no movement nl: the rocking lever vvil occur. his construction gives a quieli'rise of the. tire support 25, occurring in the passagte of the spade from the il'ull ro the dented line position of Fig'. 155 a d well during which the bag is pulled upwardly; and a lowering of the tire support during the latter part oi. the-downward movement of the spade on line 92.

ln Fig. 17 dimensions of the cranks and linkage operating' the spade have been given for eonvenienee in laying out the machine, Complex linkages of this sort give quite cli ferent results if their proportions be v eliangech and while the invention is not re strieted to the forni of linkage shown, it has been thou ht desirable for elearness to `@give one enamp e of the dimensions of the erin-oai partsl in he interest of eoinpleeness o1 disclosure.

Having thus described our invernion, 'we elaiin: i

l. ln a n'iaehine l'orpullingg bags out of tire easings, tire holding mean@ a device for opening rhe fire. :nul a Spade arin provided with mechanism for forcing it lzeween The rire and laag', raising?r the bag' to huolile ie inwardly.. and then forcing the bag out one side of the Jcire.

2. in a niaehine for pulling bags oui. of ire eaeingg/a (leviee Ylor opening the tire, and a single means for initially separating the. Lire and bag at the pointl of `opening z id thereafter pulling Jehe bag 'ree of the tire.

3. 1n a machine 'for pullinrbags oit of tire easinge` tire holding means, a (levia for; opening he tireI` a spade arm., ay roelzing hrust arin pivoed to one enc"L of the spade arm, a era-nk, a link connecting the crank with the thrusfJ arnn a Second crank, ineans for rotating the Second crank at a speed `three times that of the first crank, and a link pivotally Connecting lthe. second eranl with an' inernieilia e point on the spade arm.

4.. ln. a maehine for pulling bags; out of tire easinga` a device 'for holding and opening the tirev` a fle'vice for engaging the oppu- Sito side of 'the tire and giving lo lires o" varying fliaineier a uniiorin stretch, and. means for grasuing the hag and pulling il: freni the tire.

5. ln a machine `or supporting ire Caen ings, so that inrernal pressure bags may he pulled therefrom, ineans for holding one side of Jhe tire, a hook adapted lo engage the head edge of l'he tire on the opposite side, a movable ieinber in which the hook Slides, a spring acting to urge the. hooi; towards the tire head, nieans for moving;l the member, and a. .device lor locking; the hook to the ineniber ai; predeerinined point in the moveineni of 9 the latter..

EDWARD C. TAVLGR. CHARLES BESAUTELS.

DISCLAIMER.

1,535,382.Edwm-0l 0. Tmp/201, Longmeadow, and hcmles H. Desamitels, Springfield,

Mass. A1R-BAG FULLER. Patent dated April 28, 1925. Disclaimer led Jannary 14, 1928, by the assignee, The Fz'sv Rubber Oompcmy.

Hereby enters this disclaimer to that part of the claim in sai-d specification which is in the following Words:

2. In a machine for pulling bags out of tireoasings, a device Jfor opening the tire, anda single means for initially separating the tire and bag at the point of opening and thereafter pulling the bag free of the Jcire.

[Oycial Gazette Febmmy '7, 19128.] 

